Compare Kenworth T680 replacement headlights, including full LED assemblies, halo and sequential-signal designs, and projector housings with replaceable bulbs. Match the exact product’s model years, original lighting equipment and connectors to your truck.
Choose the required Driver or Passenger side and black or chrome finish where offered. Confirm package contents and installation requirements; a T680 model name or LED position light alone does not establish compatibility.
Use the truck’s generation and original lighting equipment as the starting point, then compare light source, selected side and installation details. Integrated LED assemblies and replaceable-bulb housings require different service parts.
Start with the truck’s model year, installed housing, manufacturer part number and original-equipment references. The current listings show 2013–2021 applications; do not extend those ranges to another generation. A factory-LED connector requirement does not establish compatibility with a halogen-equipped truck.
The chrome projector assembly with LED position light specifies H7 55W low-beam and H1 55W high-beam halogen bulbs. Other options use integrated LED low and high beams. Check the main light source separately from halo, marker and position lights, and use the installed housing’s specification when ordering service parts.
Select Driver or Passenger and confirm whether the price covers one assembly. A recommendation to replace both sides does not mean a pair is included. Compare black or chrome finishes and verify bulbs, harnesses and optional components in the exact listing before ordering.
Check connections for the main beams and any turn, marker or position-light functions. The Stealth Series listing includes a pre-installed removable load resistor; the chrome projector listing says a resistor may be required depending on the truck. Follow the exact product’s instructions rather than applying one wiring setup to every assembly. Test all functions and aim the lamps after fitting.
No. Match the exact year, generation and original lighting equipment to the product application. Similar T680 listings can have different connector and equipment requirements.
Only if the exact product explicitly supports that configuration. A factory-LED connector requirement is not evidence of a halogen-to-LED conversion.
No. Check the actual package quantity and selected variation. A one-side assembly can still carry a recommendation to replace both sides.
They can. Review the exact assembly’s instructions for turn signals, marker lights and position-light functions as well as the main headlight connection.
Check the assembly manufacturer’s service instructions. An integrated LED assembly should not be treated as a standard replaceable-bulb housing.
No. The chrome T680 projector assembly with LED position light uses H7 low-beam and H1 high-beam halogen bulbs. Compare the low- and high-beam specifications for your exact selection rather than relying on LED accents.
No. Requirements depend on the assembly and truck configuration. Some products include a removable resistor, while others describe a possible separate requirement. Follow the selected product’s installation instructions and confirm the supplied components before adding or removing anything.
